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Finding the Fourth Proportional to 19,031, 26,262.90 and 10,647.50

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Solution

The fourth proportional to 19,031, 26,262.90 and 10,647.50 is: 14,693.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,031 : 26,262.90 = 10,647.50 : x
  2. Step 2: Convert to fraction form
    19,031/26,262.90 = 10,647.50/x
  3. Step 3: Cross multiply
    19,031x = 26,262.90 × 10,647.50
  4. Step 4: Simplify right side
    19,031x = 279,634,227.75
  5. Step 5: Solve for x
    x = 279,634,227.75/19,031
  6. Step 6: Final answer
    x = 14,693.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.